darken是一個(gè)英語(yǔ)動(dòng)詞，基本意思是“使變暗，變黑”，引申還可指“憂郁，生氣，不快”。第三人稱單數(shù)：darkens；現(xiàn)在分詞：darkening；過(guò)去式：darkened；過(guò)去分詞：darkened。
例句：
1、It was a tragedy that darkened his later life.
這場(chǎng)悲劇給他后來(lái)的歲月蒙上了陰影。
2、The sky began to darken as the storm approached.
暴風(fēng)雨來(lái)臨時(shí)天空變得黑沉沉的。
3、As the day darkened the streetlights came on.
天色漸暗，街燈亮了。